By H. P. Patra, Shyamal Kumar Adhikari, Subrata Kunar
The ebook presents an tricky therapy of groundwater prospecting and administration overlaying distant sensing, geological–geophysical cum hydrogeological reports, exploration (geological and geophysical), improvement (well logging innovations, pump try, its research and purposes in good design), infection (pollution of groundwater) and regulatory law concerning groundwater usage lower than one hide. The ebook offers an elucidation of basic and theoretical history of every procedure supported by means of useful illustrative examples and specific case experiences. it's a text-cum-reference booklet not just for college students, examine students and training earth scientists but in addition for training civil and agricultural engineers operating within the software of groundwater assets, engaged in its exploration, improvement, illness, laws and administration. the overall readers may also refer the ebook for realizing the groundwater area for enough wisdom, as groundwater assets are crucial lifestyles help commodity that is replenishable yet no longer inexhaustible.
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Additional info for Groundwater Prospecting and Management
For example, the IRS-1B satellite can view the same 14 2 Remote Sensing in Groundwater Studies area of the globe once every 22 days. Temporal resolution is an important factor to be considered when performing change detection studies. 5 Image Processing The image processing is the manipulation of digital image data, including (but not limited to) rectiﬁcation, enhancement and classiﬁcation operations. The purpose of image processing is to generate thematic maps from satellite images. There is a large number of image processing softwares available from different vendors, namely ERDAS, IDRISI for both commercial and educational purposes either on personal or mainframe computers with array/vector processing capabilities (Fig.
9 Application of GIS in Groundwater Groundwater exploration in any terrain is largely controlled by the prevalence and orientation of primary and secondary porosity. The exploration involves delineation and mapping of different lithological and morphological units and identifying quantitative parameters of the drainage network, soil characteristics and slope of the terrain. These parameters play major roles in evaluating hydrogeological parameters, which in turn enable in understanding the groundwater situation in an area.
The features of drainage density were ranked in the 1–10 by Krishnamurthy et al. (1966). Slope: The elevation contours in the topographic sheet No. 73(N/7) of Survey of India helped us in generating the slope thematic map (Fig. 10e), each feature of which was ranked following the DRASTIC ratings. Surface water body: Surface water body thematic map (Fig. 10f) was generated from standard FCC. Although there is no yardstick as to what extent the surface water bodies can recharge in the immediate vicinity, we had chosen two buffer zones with radii 25 and 75 m and ranked them as 6 and 3, respectively, in our present analysis.